WO2003095295A1 - Planche a roulettes en ligne a direction - Google Patents

Planche a roulettes en ligne a direction

Info

Publication number
WO2003095295A1
WO2003095295A1 PCT/US2002/014678 US0214678W WO03095295A1 WO 2003095295 A1 WO2003095295 A1 WO 2003095295A1 US 0214678 W US0214678 W US 0214678W WO 03095295 A1 WO03095295 A1 WO 03095295A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel support
spring
street
ski
base
Prior art date
Application number
PCT/US2002/014678
Other languages
English (en)
Inventor
Tyler Tierney
Kurt Tierney
Thomas A. Wozny
Nicholas Nanos
Luc Heiligenstein
Geoffry Boyer
Original Assignee
Tierney Rides, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tierney Rides, Llc filed Critical Tierney Rides, Llc
Priority to AU2002345536A priority Critical patent/AU2002345536A1/en
Priority to PCT/US2002/014678 priority patent/WO2003095295A1/fr
Publication of WO2003095295A1 publication Critical patent/WO2003095295A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/0033—Roller skates; Skate-boards with a castor wheel, i.e. a swiveling follow-up wheel
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/014—Wheel arrangements
    • A63C17/016—Wheel arrangements with wheels arranged in one track
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/045—Roller skis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/42—Details of chassis of ice or roller skates, of decks of skateboards

Definitions

  • the present invention relates to the field of street skis, and specifically to steerable street skis with in-line wheels.
  • U.S. Patent No. 4,460,187 shows three- and four-wheeled street ski designs utilizing a forward wheel, a pair of intermediate wheels, and a single rear wheel or stopper.
  • the orientation of each wheel relative to the elongated platform of the street ski is fixed, making it difficult to steer the street ski or to make turns with a tight turning radius.
  • Some designs have incorporated a pivoting front wheel, which permits some steering control, but does not simulate the ride and feel of an actual snow ski, particularly the ability to lean the ski to one side and the tendency of the rear of the ski to slide laterally. The ability to simulate such sensations often is difficult due to the limitations of the wheel assemblies associated with the street skis.
  • the present invention provides a street ski comprising an elongated platform, at least one truck and at least one wheel.
  • the truck includes a wheel support pivotably associated with the elongated board and a spring connected to the wheel support for resisting pivoting of the wheel support relative to the elongated board.
  • the wheel is rotatably mounted to the wheel support in any suitable manner such as by an axle or the like.
  • the wheel support comprises a pair of fork members engaged with the axle.
  • the truck desirably has any suitable construction that permits pivoting of the wheel support relative to the elongated platform in response to a shift in the weight of the rider of the board to simulate the ride of actual snow skis.
  • the street ski includes a second wheel and a second truck that desirably is similar or identical to the other truck except the wheel supports may be raked in opposite directions to facilitate a fishtail effect or to otherwise facilitate a carving effect.
  • each truck includes a base rigidly secured to the elongated board rotatably associating the wheel support with the elongated platform.
  • the spring desirably engages the wheel support and the base for resisting pivoting of the wheel support relative to the base.
  • the spring may have any suitable construction, but in a preferred embodiment, it comprises an elastomer desirably having a substantially cylindrical configuration.
  • Each truck may further include a housing that desirably receives the spring, and a lug shaft engaging the base and the housing.
  • the lug shaft is rigidly secured to the base, and the housing is pivotably associated with the lug shaft.
  • the lugshaft includes at least one outwardly-extending lug shaft spline and wherein the spring defines at least one keyway for receiving the lugshaft spline.
  • the track may further include an outer cylinder member associated with the housing and having at least one outer cylinder spline and the spring defines at least one keyway receiving the outer cylinder spline.
  • the spring within each truck can be readily removed and replaced with another spring of different resistance to alter the ride and carve characteristics.
  • the truck may further include an end cap engaging the lug shaft to retain the spring within the housing, and a retaining clip releasabfy engaged with the end cap for retaining the spring within the housing.
  • the street ski in accordance with a preferred embodiment may be used on any hard surface such as, for example, a street, a sidewalk, a skate park or the like, or a driveway, or, in accordance with alternative embodiments may be used on a softer surfaces, such as, for example, grass, dirt, mountains, hills or the like.
  • a softer surfaces such as, for example, grass, dirt, mountains, hills or the like.
  • the street ski in the preferred embodiments desirably simulates the sensation of snow skis, it may in accordance with alternative embodiments instead simulate other sensations such as, for example, water skiing.
  • Figure 1 illustrates an in-line street ski with forward and rear trucks.
  • Figure 2 is a top view of the street ski illustrating the pivoting action of the trucks that result from the skier shifting his weight to the left side of the ski (lower part of the figure).
  • Figure 3 is a view of the street ski from the rear, illustrating the rear truck pivoting caused by the skier shifting his weight to the left.
  • Figure 4 is an exploded view of the forward truck.
  • Figure 5 and 6 illustrate the assembled truck with the board not shown.
  • Figures 7, 8, and 9 are section views of the truck indicated in Figure 5.
  • Figure 10 is a perspective view showing the lower surface of the base.
  • a street ski 10 in accordance with a preferred embodiment of the invention is illustrated in Figure 1 as comprising an elongated platform 11, conventional bindings 73 and 74, two or more in-line wheels 12 and 13, trucks 14 and 15, and wheel axles 16 and 17 for mounting the wheels to the underside 18 of platform 11.
  • the elongated platform 11 and in-line wheels 12 and 13 may have any suitable configuration and maybe constructed of any suitable materials.
  • Bindings 73 and 74, illustrated schematically in Figures 2 and 3 may be of any suitable design, preferably either molded rubber or mechanical devices, such as the rubber bindings typically used to secure a water skier's feet to the skis or mechanical bindings typically used to secure snow skiers' boots to snow skis.
  • each truck 14 and 15 have substantially identical constructions.
  • Each truck 14 and 15 may, for example, be constructed as shown in Figs. 4 - 9.
  • Each truck 14 and 15 includes a wheel support 20 that is pivotably associated with the platform 11 in any suitable manner and a spring 21 for resisting rotating or otherwise pivoting movement of wheel support 20.
  • each truck 14 and 15 further includes abase 22 rigidly secured to the underside 18 of the platform 11 by, for example, screws or bolts (not shown) passing through mounting holes defined by the base.
  • Wheel support 20 desirably pivots relative to the elongated platform 11 and base 22.
  • wheel support 20 may have any suitable construction.
  • wheel support 20 comprises a housing 24 and a pair of fork members 25 and 26 that are raked, i.e., inclined from the vertical, so that the respective wheel axle 16 is not directly under the respective housing 24.
  • the offset may also be achieved by other means, such as extending the geometry of housing 24 or adding other intermediate parts, as long as wheel 12 is offset from the axis about which housing 24 pivots. Because of the offset, a side force on the wheel 12 (parallel to the wheel axle 16), is created when a rider leans to one side to tilt the platform, which causes housing 24 to pivot and wheel 12 to turn.
  • Spring 21 resists the pivoting movement of housing 24 and desirably causes it to return to a center position when the side force on the wheel caused by the rider leaning is removed.
  • Spring 21 may have any suitable construction and may be constructed of any suitable material.
  • spring 21 may have a hollow cylindrical configuration, such as, for example, the configuration illustrated in Figure 4.
  • the illustrated spring 21 desirably is made of an elastomer, preferably polyurethane.
  • the spring 21 is interlocked with the housing 24 and base 22 by any of several known methods, including keys and keyways, splines, or a square shaft placed on the outside and inside surfaces of the hollow cylindrical spring.
  • bolt 31 descends through orifice 32 in base 22 such that the head 32 of bolt 32 rests on lock washer 34 and flat washer 35 which in turn rest on flange 36 of base 24.
  • Bolt 31 threads into lug shaft 40.
  • Lug shaft 40 has a rectangular protrusion 41 from the flange 42 which fits into a recess 43 in the lower surface 44 of base 22 shown in Figure 10. This prevents lug shaft 40 from rotating relative to base 22.
  • housing 24 Between lug shaft flange 42 and base 22 is housing 24.
  • An upper thrust bearing 51 is positioned between housing 24 and base 22 to permit housing 24 to pivot relative to base 22 with minimal friction loss.
  • Thrust washers 52 and 53 are placed between thrust bearing 51 and housing 24 and between thrust bearing 5 land base 22 respectively.
  • lower thrust bearing 54 and pair of tlirust washers 55 and 56 are placed between housing 24 and lug shaft flange 42 to permit housing 24 to pivot with minimal friction relative to lug shaft 40 which as previously mentioned, does not move relative to base 22.
  • a washer/bearing retainer 57 between the lower thrust washer 56 and lug shaft flange 42 keeps the upper and lower bearings and washers in compression.
  • Lug shaft 40 also has a middle cylindrical section 60 with one or more exterior splines 61. Exterior splines 61 are received by interior keyways 62 defined by spring 21. Spring 21 also defines one or more exterior keyways 63 to receive splines 64 extending inward from an outer ring 65. Outer ring 65 also has exterior stops 66, 67, and 68 that prevent it from rotating in housing 24. Consequently, as housing 24 turns, outer ring 65 is also turned through the outer ring stops 66, 67, and 68. Outer ring splines 64 are received by outer keyways 63 on spring 21 to transmit a torque to the spring 21.
  • Outer ring 64 and spring 21 are held in place by a cap retainer 70 and threaded cap 71 which is threaded onto lug shaft threads 72 cut on the end of lug shaft 40.
  • cap retainer 70 is snapped into a retaining ring groove 73 cut into the lower most end of the lug shaft 40, which protrudes beneath the cap 71, to prevent cap 71 from becoming unscrewed while the skateboard is in use.
  • Spring 21 can be readily replaced with springs of different stiffness or elasticity by disengaging cap retainer 70 from the retaining ring groove 73 and unscrewing cap 71 from the lug shaft threads 72.
  • the spring 21 could be replaced with a coiled torsional spring with one end of the spring attached to the outer cylinder and the other end of the spring attached to the lug shaft.
  • An elastomer spring and coiled torsional spring could also be used in combination to achieve the desired restoring force as a function of wheel assembly pivoting.
  • the elastomer spring could comprise several sectors of a hollow cylinder that fit between splines 61 and 63.
  • the elongated platform 11 of the ski may comprise a front section 75, a middle section 76, and a rear section 77, each with an upper surface 78, 79, 80, the front and middle sections being connected to each other, and the middle and rear sections connected to each other.
  • the upper surface 79 of middle section 76, on which the skier's foot is secured by bindings 73 and 74, is lower than the upper surface of the front and rear sections. This configuration places the street skier's feet closer to the surface upon which the street skis are being ridden than is possible with a uniform elevation of the elongated platfo ⁇ n due to the dimensions of the wheel assemblies.
  • the middle section 76 can be further lowered by placing a front spacer 81 between the front 75 and middle sections 76, and a rear spacer 82 between the middle 76 and rear sections 77 as shown in Figure 11.
  • the springs can be replaced to suit riders' preferences and to simulate the steering response of snow skis or waterskis as described above. In most cases, stiffer springs are preferred for more aggressive maneuvers and the rear track springs are preferably stiffer than the forward track springs.

Abstract

L'invention concerne une planche à roulettes (10) comprenant une plateforme oblongue (11), une paire de bogies (14, 15) et une paire de roues (12, 13). Chaque bogie comprend un support de roue (20) pivotant, associé à la plateforme oblongue, et un ressort connecté au support de roue permettant d'opposer une force au pivotement du support de roue par rapport à la plateforme. Chaque roue (12, 13) est montée sur le support d'une façon adaptée quelconque, par exemple au moyen d'un axe (16, 17).
PCT/US2002/014678 2002-05-08 2002-05-08 Planche a roulettes en ligne a direction WO2003095295A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002345536A AU2002345536A1 (en) 2002-05-08 2002-05-08 Steerable in-line street ski
PCT/US2002/014678 WO2003095295A1 (fr) 2002-05-08 2002-05-08 Planche a roulettes en ligne a direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/014678 WO2003095295A1 (fr) 2002-05-08 2002-05-08 Planche a roulettes en ligne a direction

Publications (1)

Publication Number Publication Date
WO2003095295A1 true WO2003095295A1 (fr) 2003-11-20

Family

ID=29418042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/014678 WO2003095295A1 (fr) 2002-05-08 2002-05-08 Planche a roulettes en ligne a direction

Country Status (2)

Country Link
AU (1) AU2002345536A1 (fr)
WO (1) WO2003095295A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2484059A (en) * 2009-12-09 2012-04-04 Timothy Dudgeon Roller ski with steerable truck
EP2586504A1 (fr) * 2011-10-28 2013-05-01 Jacek Kowalski Appareil de ski parabolique sur surface sèche
US9174663B2 (en) 2013-03-15 2015-11-03 Karl Reinig Snow rider

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245848A (en) * 1977-12-29 1981-01-20 Dudouyt Jean Paul Vehicle equipped with two articulated trucks
US4394029A (en) * 1981-04-03 1983-07-19 Holmgren Frank E Foot operated vehicle
US5154436A (en) * 1990-11-27 1992-10-13 Jez Marek J Wheeled riding apparatus
US6193249B1 (en) * 1996-07-03 2001-02-27 Salvatore Buscaglia Turning mechanism for tandem wheeled vehicles and vehicles employing the same
US6315304B1 (en) * 2000-01-03 2001-11-13 Eric W. Kirkland Adjustable truck assembly for skateboards

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245848A (en) * 1977-12-29 1981-01-20 Dudouyt Jean Paul Vehicle equipped with two articulated trucks
US4394029A (en) * 1981-04-03 1983-07-19 Holmgren Frank E Foot operated vehicle
US5154436A (en) * 1990-11-27 1992-10-13 Jez Marek J Wheeled riding apparatus
US6193249B1 (en) * 1996-07-03 2001-02-27 Salvatore Buscaglia Turning mechanism for tandem wheeled vehicles and vehicles employing the same
US6315304B1 (en) * 2000-01-03 2001-11-13 Eric W. Kirkland Adjustable truck assembly for skateboards

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2484059A (en) * 2009-12-09 2012-04-04 Timothy Dudgeon Roller ski with steerable truck
GB2484059B (en) * 2009-12-09 2012-08-29 Timothy Dudgeon A roller ski
EP2586504A1 (fr) * 2011-10-28 2013-05-01 Jacek Kowalski Appareil de ski parabolique sur surface sèche
US9174663B2 (en) 2013-03-15 2015-11-03 Karl Reinig Snow rider

Also Published As

Publication number Publication date
AU2002345536A1 (en) 2003-11-11

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